

The issue numbers on the back of the badge.

The issue numbers on the back of my Longines the 9 is about the same on both so looks like it mite be the same time frame both were engraved. Been looking for one for a fair price got it for 20 bucks off fleabay. At a military site on the net they wanted over a 200 bucks for the same one with same factory stamp on the back so got a sleeper.